3-12158778-C-T

Variant summary

Our verdict is Benign. Variant got -9 ACMG points: 0P and 9B. BP4_ModerateBP6_ModerateBP7BS2

The NM_003256.4(TIMP4):​c.63G>A​(p.Leu21=) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000358 in 1,603,986 control chromosomes in the GnomAD database, including 3 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★).

Frequency

Genomes: 𝑓 0.0018 ( 2 hom., cov: 33)
Exomes 𝑓: 0.00020 ( 1 hom. )

Consequence

TIMP4
NM_003256.4 synonymous

Scores

2

Clinical Significance

Benign criteria provided, single submitter B:1

Conservation

PhyloP100: -0.0660
Variant links:
Genes affected
TIMP4 (HGNC:11823): (TIMP metallopeptidase inhibitor 4) This gene belongs to the TIMP gene family. The proteins encoded by this gene family are inhibitors of the matrix metalloproteinases, a group of peptidases involved in degradation of the extracellular matrix. The secreted, netrin domain-containing protein encoded by this gene is involved in regulation of platelet aggregation and recruitment and may play role in hormonal regulation and endometrial tissue remodeling. [provided by RefSeq, Jul 2008]
SYN2 (HGNC:11495): (synapsin II) This gene is a member of the synapsin gene family. Synapsins encode neuronal phosphoproteins which associate with the cytoplasmic surface of synaptic vesicles. Family members are characterized by common protein domains, and they are implicated in synaptogenesis and the modulation of neurotransmitter release, suggesting a potential role in several neuropsychiatric diseases. This member of the synapsin family encodes a neuron-specific phosphoprotein that selectively binds to small synaptic vesicles in the presynaptic nerve terminal. Polymorphisms in this gene are associated with abnormal presynaptic function and related neuronal disorders, including autism, epilepsy, bipolar disorder and schizophrenia. Alternative splicing of this gene results in multiple transcript variants. The tissue inhibitor of metalloproteinase 4 gene is located within an intron of this gene and is transcribed in the opposite direction. [provided by RefSeq, Feb 2014]

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ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -9 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.44).
BP6
Variant 3-12158778-C-T is Benign according to our data. Variant chr3-12158778-C-T is described in ClinVar as [Benign]. Clinvar id is 709372.Status of the report is criteria_provided_single_submitter, 1 stars.
BP7
Synonymous conserved (PhyloP=-0.066 with no splicing effect.
BS2
High Homozygotes in GnomAd4 at 2 AR gene

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
TIMP4NM_003256.4 linkuse as main transcriptc.63G>A p.Leu21= synonymous_variant 1/5 ENST00000287814.5
SYN2NM_133625.6 linkuse as main transcriptc.775-2768C>T intron_variant ENST00000621198.5

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
TIMP4ENST00000287814.5 linkuse as main transcriptc.63G>A p.Leu21= synonymous_variant 1/51 NM_003256.4 P1
SYN2ENST00000621198.5 linkuse as main transcriptc.775-2768C>T intron_variant 1 NM_133625.6 P2Q92777-1

Frequencies

GnomAD3 genomes
AF:
0.00183
AC:
279
AN:
152258
Hom.:
2
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.00610
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00144
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.0000147
Gnomad OTH
AF:
0.00143
GnomAD3 exomes
AF:
0.000476
AC:
111
AN:
233360
Hom.:
0
AF XY:
0.000365
AC XY:
47
AN XY:
128700
show subpopulations
Gnomad AFR exome
AF:
0.00716
Gnomad AMR exome
AF:
0.000205
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000189
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.000202
AC:
293
AN:
1451610
Hom.:
1
Cov.:
31
AF XY:
0.000174
AC XY:
126
AN XY:
722172
show subpopulations
Gnomad4 AFR exome
AF:
0.00779
Gnomad4 AMR exome
AF:
0.000270
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
9.01e-7
Gnomad4 OTH exome
AF:
0.000333
GnomAD4 genome
AF:
0.00184
AC:
281
AN:
152376
Hom.:
2
Cov.:
33
AF XY:
0.00193
AC XY:
144
AN XY:
74516
show subpopulations
Gnomad4 AFR
AF:
0.00613
Gnomad4 AMR
AF:
0.00144
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.0000147
Gnomad4 OTH
AF:
0.00142
Alfa
AF:
0.000655
Hom.:
0
Bravo
AF:
0.00216
Asia WGS
AF:
0.000289
AC:
1
AN:
3478

ClinVar

Significance: Benign
Submissions summary: Benign:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

not provided Benign:1
Benign, criteria provided, single submitterclinical testingLabcorp Genetics (formerly Invitae), LabcorpDec 31, 2019- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.44
CADD
Benign
6.0
DANN
Benign
0.86

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.0
Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

LitVar

Below is the list of publications found by LitVar. It may be empty.

Other links and lift over

dbSNP: rs148699109; hg19: chr3-12200278; API